<template>
  <div id="aCoursesList" class="bg-fa of">
    <!-- 讲师列表 开始 -->
    <section class="container">
      <header class="comm-title all-teacher-title">
        <h2 class="fl tac">
          <span class="c-333">全部讲师</span>
        </h2>
        <section class="c-tab-title">
          <a id="subjectAll" title="全部" href="#">全部</a>
          <!-- <c:forEach var="subject" items="${subjectList }">
                            <a id="${subject.subjectId}" title="${subject.subjectName }" href="javascript:void(0)" onclick="submitForm(${subject.subjectId})">${subject.subjectName }</a>
          </c:forEach>-->
        </section>
      </header>
      <section class="c-sort-box unBr">
        <div>
          <!-- /无数据提示 开始-->
          <section class="no-data-wrap" v-if="data.total == 0">
            <em class="icon30 no-data-ico">&nbsp;</em>
            <span class="c-666 fsize14 ml10 vam">没有相关数据，小编正在努力整理中...</span>
          </section>
          <!-- /无数据提示 结束-->
          <article class="i-teacher-list" v-if="data.total > 0">
            <ul class="of">
              <li v-for="teacher in data.records" :key="teacher.id">
                <section class="i-teach-wrap">
                  <div class="i-teach-pic">
                    <a :href="'/teacher/'+teacher.id" :title="teacher.name" target="_blank">
                      <img :src="teacher.avatar" :alt="teacher.name">
                    </a>
                  </div>
                  <div class="mt10 hLh30 txtOf tac">
                    <a :href="'/teacher/'+teacher.id" :title="teacher.name" target="_blank" class="fsize18 c-666">{{teacher.name}}</a>
                  </div>
                  <div class="hLh30 txtOf tac">
                    <span class="fsize14 c-999">{{teacher.intro}}</span>
                  </div>
                  <div class="mt15 i-q-txt">
                    <p class="c-999 f-fA">{{teacher.career}}</p>
                  </div>
                </section>
              </li>
            </ul>
            <div class="clear"></div>
          </article>
        </div>
        <!-- 公共分页 开始 -->
        <div>
          <!-- undisable这个class是否存在，取决于数据属性hasPrevious -->
          <!-- @click.prevent 因为是a标签，a标签默认会跳转，prevent表示不跳转，执行当前的gotoPage这个方法-->
          <div class="paging">
            
            <a :class="{undisable: !data.hasPrevious}" href="#" title="首页"
               @click.prevent="gotoPage(1)">首</a>
            
            <a :class="{undisable: !data.hasPrevious}" href="#" title="前一页" 
               @click.prevent="gotoPage(data.current-1)">&lt;</a>

            <a v-for="page in data.pages" :key="page" href="#" :title="'第'+page+'页'"
              :class="{current: data.current == page, undisable: data.current == page}"
               @click.prevent="gotoPage(page)">{{page}}</a>

            <a :class="{undisable: !data.hasNext}" href="#" title="后一页"
                @click.prevent="gotoPage(data.current+1)">&gt;</a>

            <a :class="{undisable: !data.hasNext}" href="#" title="末页"
               @click.prevent="gotoPage(data.pages)">末</a>
            <div class="clear"></div>
          </div>
        </div>
        <!-- 公共分页 结束 -->
      </section>
    </section>
    <!-- /讲师列表 结束 -->
  </div>
</template>
<script>
import teacherApi from '@/api/teacher'
export default {

  // 异步调用，特点，只调用一次。
  // params:相当于之前的this.$route.params.id 等价于params.id
  asyncData({params,error}){
    return teacherApi.getTeacherPage(1,8).then(res => {
      // this.data = res.data.data
      return {data:res.data.data}
    })
  },

  methods:{
    // 分页获取的方法,因为异步调用只执行一次，但是我们分页需要重复调用（点一次调用一次）
    gotoPage(page){
      teacherApi.getTeacherPage(page,8).then(res => {
        // 因为上面异步调用已经有data了，所以在data函数中不需要再定义下面的data
        this.data = res.data.data
      })
    }
  }
  

};
</script>
<style scoped>
  
</style>